John
msec 3 is the standard security level try
http://www.mandrakeuser.org/docs/sec...ec2.html#level
2) As soon as you opt for a higher level, the reason for the hang as you call it IS because it expects you to manually allow services. I haven't checked what services you are alluding to, but it is likely its not a hang but a wait - waiting for you to use the console/terminal aka command line interface to issue a command.
IMHO, get yourself a easy to use firewall like guarddog and stay at standard security.
If the threat is from within the building you can remove some permissions to achieve a hardened system.
All secure systems are by their very nature inconvenient, so think about your needs for paranoid settings.
No offence intended